SharedArrayBuffer.prototype.byteLength - JavaScript 编辑

The byteLength accessor property represents the length of an SharedArrayBuffer in bytes.

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The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

Description

The byteLength property is an accessor property whose set accessor function is undefined, meaning that you can only read this property. The value is established when the shared array is constructed and cannot be changed.

Examples

Using byteLength

var sab = new SharedArrayBuffer(1024);
sab.byteLength; // 1024

Specifications

Specification
ECMAScript (ECMA-262) The definition of 'SharedArrayBuffer.prototype.byteLength' in that specification.

Browser compatibility

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See also

• SharedArrayBuffer